scholarly journals The response of Stecklings Age and Plant Spacing on Carrot Seed Quality and Production

2020 ◽  
Vol 3 (2) ◽  
pp. 71
Author(s):  
Fatiani Manik ◽  
Rasiska Tarigan ◽  
Susilawati Barus

The quality of seed needs to be considered in carrot seed production to maintain its productivity. The research aims to find out the response of stecklings age and plant spacing on carrot seed quality and production. This research was held on July 2018 – April 2019 in Berastagi field trial (1340 m MSL). The experiment used Randomized Complete Block Design (RCBD) with two factors, i.e., stecklings age (2 and 3 months) and plant spacing (25, 50, 75, and 100 cm), replicated four times (32 experiment units), 10 plants from each experiment units were taken as samples. The result showed that stecklings age and plant spacing were affected to plant vegetative and generative stages. The combination of 2-month stecklings and 50 cm plant spacing increased the number of secondary umble, if compared to cultivation, which was generally used by the farmer (3-month stecklings and 25 cm plant spacing). The best quality of carrot seed was obtained from the combination of 3-month stecklings and 50 cm plant spacing.

2003 ◽  
Vol 21 (3) ◽  
pp. 443-447 ◽  
Author(s):  
Márcio S. de Lima ◽  
Antonio I. I. Cardoso ◽  
Marcelo F. Verdial

Squash seeds yield and quality can be improved by proper population plant spacing and the pollen quantity, which influences the pollination quality and fertilization. Nine experiments were conducted as a factorial combination of three spacing between plants (0.8 x 0.3, 0.8 x 0.6 and 0.8 x 0.9 m), two quantities of pollen (50% of an anther and another entire one) and natural insect pollination. Seed and fruit production parameters, and seed quality were evaluated. A randomized complete block design, five replications, with ten plants per plot was adopted. Larger plant spacing increased the average number of mature fruits and seed yield per plant. Seed yield was directly proportional to the amount of pollen used during pollination. Higher amounts of pollen resulted in higher seed yield per area, but the plant spacing did not affect this characteristic. Manual pollination, using a whole anther, did not differ from natural pollination in relation to seed yield and quality.


2013 ◽  
Vol 22 (3) ◽  
pp. 242 ◽  
Author(s):  
Rini Rosliani ◽  
ER Palupi ◽  
Yusdar Hilman

ABSTRAK. Penggunaan umbi benih untuk bahan perbanyakan bawang merah mempunyai beberapa masalah, antara lain ketidaktersediaan benih bermutu, produktivitas rendah, dan mahal. Salah satu alternatif teknologi yang potensial untuk dikembangkan sebagai benih ialah penggunaan biji botani atau true shallots seed (TSS).  Penelitian dilakukan untuk memproduksi benih bawang merah TSS di dataran tinggi melalui peningkatan pembungaan dan viabilitas serbuk sari menggunakan BAP dan boron.  Penelitian dilakukan di Kebun Percobaan Balai Penelitian Tanaman Sayuran Lembang, Jawa Barat (ketinggian 1.250 m dpl.) dari Bulan Agustus 2011 sampai dengan Februari 2012. Rancangan percobaan yang digunakan yaitu acak kelompok faktorial dengan tiga ulangan.  Perlakuan terdiri atas dua faktor, yaitu aplikasi benzil amino purin (BAP) 0, 50, 100, 150, dan 200 ppm dan boron 0, 1, 2, 3, dan 4 kg/ha.  Aplikasi  BAP diberikan tiga kali pada umur 1, 3, dan 5 minggu setelah tanam (MST), dan boron pada umur 3, 5, dan 7 MST. Hasil penelitian menunjukkan bahwa aplikasi BAP dapat meningkatkan pembungaan, viabilitas serbuk sari bawang merah, dan produksi benih TSS tetapi tidak meningkatkan mutu benih, sedangkan aplikasi boron efektif meningkatkan semua variabel yang diamati termasuk mutu benih TSS. Konsentrasi BAP yang optimum untuk menghasilkan produksi benih TSS ialah 37,5 ppm, sedangkan dosis boron yang optimum untuk menghasilkan bobot benih per plot yang tinggi dengan mutu benih sesuai standar sertifikasi mutu yaitu 2,88 kg/ha.  Hasil yang diperoleh pada perlakuan boron memberikan peningkatan sebesar 165,69% daripada kontrol. Hasil penelitian ini memberikan informasi teknologi produksi TSS yang dapat dikembangkan untuk memproduksi benih TSS bermutu tinggi. <br /><br />ABSTRACT. Rosliani, R, Palupi, ER, and Hilman, Y 2012. Benzyl Amino Purine and Boron Application for Improving Production and Quality of True Shallots Seed (Allium cepa var. ascalonicum) in Highlands. The use of bulb for propagation material of shallots has several problems including unavailability of quality seeds, low productivity, and expensive. One of the potential alternative technologies to be developed as seed is using true shallots seed (TSS). The aimed of research was to produce TSS in the highlands through increased flowering and pollen viability by using benzyl amino purine (BAP) and boron. The study was conducted at the Experimental Field, Indonesian Vegetable Research Institute (IVEGRI) in Lembang, West Java (altitude 1,250 m asl.), from August 2011 to February 2012. The factorial experiment was arranged in a randomized block design with three replications. The treatments consists of two factors, namely the application of BAP 0, 50, 100, 150, and 200 ppm and boron (0, 1, 2, 3, and 4 kg/ha). Benzyl amino purine application was given three times at  1, 3, and 5 weeks after planting (WAP), and boron at  3, 5, and 7 WAP. The results showed that application of BAP improved flowering, pollen viability, and seed production of TSS but did not improve seed quality, while boron application effectively increased all variables including the seed quality of TSS. The efficient concentration of BAP to improve TSS seed weight per plot was 37.5 ppm, while the optimum concentration of boron to improve TSS seed production with the good seed quality (according to the certification standards of seed quality) was 2.88 kg/ha. The yield obtained in the treatment of boron gave an increase of 165.69% compared to the control. The results provide information about TSS production techniques that can be developed to produce  the high seed quality of TSS.<br /><br />


2019 ◽  
Vol 12 (1) ◽  
pp. 108
Author(s):  
Paul Anguria ◽  
George N. Chemining’wa ◽  
Richard N. Onwonga ◽  
Michael A. Ugen

Sesame (Sesamum indicum. L) is one of the main sources of livelihoods in northern Uganda. However, its production is constrained by low soil fertility and moisture levels. A study was conducted at Serere, Uganda in 2013 and 2014 to investigate the effect of organo-mineral fertilizers on growth, seed yield and nutritional quality of sesame. The design of the experiment was a randomized complete block design with three replications. The treatments comprised: control (no soil amendment), mixtures of 4 crop residues each at (3 and 6 t/ha) and two rates of N, P and K. Finger millet husks (3 t/ha) plus lower fertilizer rate (30 kg N-25 kg P-40 Kg K/ha) had significantly higher seed yield of sesame; while finger millet husks (6 t/ha) plus higher fertilizer rate (60 kg N-50 kg P-80 Kg K/ha) significantly increased vegetative growth of sesame. Finger millet husks (6 t/ha) plus lower fertilizer rate had significantly higher seed crude protein content of sesame; while cowpea husks (3 t/ha) plus higher fertilizer rate and groundnut shells (3 t/ha) plus lower fertilizer rate produced significantly higher seed total ash and seed oil content of sesame, respectively. This study has demonstrated that application of a mixture of crop residues and inorganic fertilizers is the best treatment in enhancing growth, seed yield and nutritional seed quality of sesame.


AGRICA ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
I Wayan Sunarta

Diversification of plant species is needed to anticipate price fluctuation of vegetables. Intercropping system compared to monoculture can give more benefits to farmers. The arrangement of plant spacings of sweet corn and cabbage variety is expected to result in higher yields and benefits in intercropping. The field experiment, which had the objective to study the effects of plant spacing of sweet corn and cabbage variety on yields of sweet corn and cabbage in the intercropping system, had been conducted from March to July 2008. The experiment was carried out at the dryland farming area at Candikuning Village, district of Baturiti, Tabanan regency, 1.200 m asl. In the experiment, a randomized complete block design with two factors namely plant spacing of sweet corn (120 cm x40 cm, 180 cm x 40 cm and 240 cm x 40 cm) and variety of cabbage (Green Nova and Summer-Autumn) were used. Plant spacing of cabbage was 60 cm x 40 cm. All treatments were replicated four times. The results of the experiment showed that the effect of interaction between plant spacing of sweet corn and cabbage variety in intercropping was not significant on yields of sweet corn and cabbage. Individually, sweet corn plant spacing of 120 cm x40 cm gave the highest fresh weight of cob without husk (10,91 t ha"'), which was 44.50% and 80.93% respectively higher than the spacing of ! 80 cm x 40 cm and 240 cm x 40 cm. The spacing of 180 cm x 40 cm resulted in not the significantly different fresh weight of cob with husk but gave the highest fresh weight of cabbage heads (56.101 ha'1), which was 27.36% higher than that at sweet corn spacing of 120 cm x 40 cm and was not significantly different from that at 240 cm x 40 cm. Cabbage variety Green Nova gave the highest head (56.101 ha1), which was 14.48% higher than variety Summer-Autumn. Intercropping between cabbage variety Green Nova and Sweet corn at 180 cm x 40 cm spacing resulted in the highest benefit (Rp. 20,488125 t ha'1), which was Rp. 3,335500 higher than the average benefit of cabbage monoculture. The efficiency of land use in intercropping was higher (LER: 1.69) than in monoculture (LER: 1). It is suggested to use cabbage variety Green Nova intercropped with sweet corn at I 80 cm x 40 cm spacing. An experiment studying the effect of cabbage intercropped with sweet corn and other short season vegetables planted after harvesting cabbages is also suggested.


2016 ◽  
Vol 29 (1) ◽  
pp. 66-75 ◽  
Author(s):  
CÁSSIO JARDIM TAVARES ◽  
PATRÍCIA CARDOSO FERREIRA ◽  
ADRIANO JAKELAITIS ◽  
JULIANA DE FÁTIMA SALES ◽  
OSVALDO RESENDE

ABSTRACT: The objective of this research was to evaluate the effects of using different herbicides as desiccants in pre-harvest and the effects of storage on the physiological and sanitary quality of azuki bean seeds (Vigna angularis Willd). The experiment was arranged in a randomized complete block design in a split plot scheme, with four replications. Four herbicides were tested: paraquat (400 g a.i. ha-1), glufosinate ammonium (400 g a.i. ha-1), glyphosate (720 g a.i. ha-1), flumioxazin (30 g a.i. ha-1) and a control without herbicide application. In the subplots seed quality was tested in two evaluation periods: at harvest and six months after harvest. Desiccant was applied when the azuki beans were physiologically mature. We assessed the physiological and sanitary quality of the seeds using a vigour and seed health test. The use of glyphosate resulted in a higher incidence of abnormal seedlings and reduced size and weight of the seedlings. With paraquat and flumioxazin the physiological quality was maintained and there was reduced pathogen infestation in the seeds six months after harvest. Storage affected the physiological quality of the azuki bean seeds.


2021 ◽  
Vol 23 (2) ◽  
pp. 23-34
Author(s):  
Lutfunnahar ◽  
MF Hossain ◽  
MA Malek ◽  
R Kamrunnahar ◽  
J Hossain

Crop management like planting time is a crucial factor for maximizing yield especially for seed production. Seed production of carrot is greatly influenced by temperature as it requires adequate periods of cool temperature (vernalization) for flowering and seed production. To find out optimum planting time of carrot steckling for quality seed production the experiment was conducted at the Field Laboratory of Horticulture Farm, Bangladesh Agricultural University, Mymensingh during the period from October 2015 to May 2016.Three planting time viz. 05 January, 15 January and 25 January on the seed production of three carrot varieties viz. BA (Brasillia Agroflora), PA (Prima Agroflora) and NK (New Kuroda) which constituted 9 treatment combinations were included in the experiment. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Planting time had significant effect on most of the parameters studied. The January 05 planting of steckling gave the highest seed yield (527.92 kg ha-1) and the lowest was in January 25 planting of steckling (314.75 kg ha-1). Among the varieties BA gave the highest seed yield (448.73 kg ha-1) and the lowest yield for New Kuroda (395.35 kgha-1.) Considering interaction of planting time and variety the highest seed yield (572.37 kg ha-1) was obtained from the treatment combination of early planting (05 January) with the variety of BA and the lowest (279.77 kg ha-1) was recorded from the late planting (25 January) in variety PA. Hence, BA carrot variety planting on 5 January may be recommended for carrot seed production in Mymensingh region in Bangladesh. Bangladesh Agron. J. 2020, 23(2): 23-34


2015 ◽  
Vol 7 (1) ◽  
pp. 471-476 ◽  
Author(s):  
D.K. Mehta ◽  
Tarun Singh ◽  
Rajesh Kanwar

A study was carried out to evaluate the effect of head decapitation and planting density on plant growth, seed yield and quality of sprouting broccoli, Brassica oleracea var. italica L. using cultivar ‘Green Head’. The twenty treatments comprised of combinations of four head decapitation methods viz., D1 (decapitation of primary head at appearance and harvesting seeds from secondary heads), D2 (decapitation of primary head at marketable stage and harvesting seeds from secondary heads), D3 (removal of secondary heads at appearance and harvesting seeds primary head) and ‘D4’ (No decapitation- control) and five planting densities viz., S1 (60x60 cm), S2 (60x45 cm), S3(45x45 cm), S4 (60x30 cm), and S5 (45x30 cm). Decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) and planting density S3 (45x45 cm) independently as well as in combination gave highest seed yield per plot and per hectare. This combination was also found comparable to other combinations for other characters like days to 50% flowering, days to seed harvesting, plant height at harvesting (cm), number of branches per plant, number of siliqua per plant, siliqua length (cm), number of seeds per siliqua and seed quality parameters. Therefore, it is suggested that decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) in combination with plant spacing of 45x45 cm i.e. D1S3 can be recommended for commercial seed production of sprouting broccoli.


2015 ◽  
Vol 3 (4) ◽  
pp. 626-634
Author(s):  
A.F. Mollah ◽  
M. M. Rahman ◽  
M. Z. Tareq ◽  
M.M. Hasan ◽  
A.B.M.Z. Hoque

An experiment was conducted at the Bangladesh Jute Research Institute (BJRI), Regional Station, Kishoreganj, Bangladesh during July to December 2010 and 2011 to study the effect of spacing and time of de-topping on yield and quality of kenaf seed cv. HC-95 grown under transplanting method. The experiment comprised three plant spacing (viz.,  40 cm × 15 cm, 30 cm × 15 cm and 20 cm × 15 cm) and five de-topping (viz., no de-topping, de-topping at transplanting, de-topping at 15, 30 and 45  days after transplanting (DAT) in a Randomized Complete Block Design (RCBD) with three replications. The highest yield of kenaf seed was obtained from planting at 30 cm × 15 cm spacing. The best quality seed in respect to germination and vigour was also obtained from transplanting at 30 cm × 15 cm spacing. The highest seed yield, germination and vigour of seed were obtained for de-topped at 30 DAT. The study concludes that late season kenaf produces highest seed yield with best quality when planted at 30 cm x 15 cm spacing and for de-topping at 30 DAT. Int J Appl Sci Biotechnol, Vol 3(4): 626-634


2019 ◽  
Vol 35 (1) ◽  
pp. 12
Author(s):  
Alfa Sada Saputra ◽  
Suprihati Suprihati ◽  
Endang Pudjihartati

<p>Viola cornuta L. is an ornamental plant that is primarily propagated by high-quality seeds that have high demand in subtropical countries. The use of fertilizers according to recommendations results in the growth of parent plants below the standard. Furthermore, seed production is generated below 2 g per plant and the seed germination capacity is below 80%. In addition, phosphorus (P) and potassium (K) nutrients can increase the growth and seed production of the plants, including ornamental plants. The study aimed to determine the influence of P and K nutrients on growth and seed production of V. cornuta L. Research was carried out in November 2018 - January 2019 at PT. Selektani Horticulture, Ngablak, Magelang. There were seven treatments with four replications. Experiments were arranged according to the Randomized Complete Block Design (RCBD). Plants were grown in 5l volume-polybags. Fertilization was done by watering the planting media. Analysis of variance was performed at 95% accuracy. The study shows that P and K nutrients have a highly significant effect on height, number of flowers, number of seed per capsule, seed production and germination energy and significantly affected the number of leaves. The addition of both P and K fertilizers in the vegetative and P in the generative stage (P6) can result in the productivity of 3.28 g plant-1 and produce germination energy ≥90%. It is recommended for increasing growth and seed production.</p>


2017 ◽  
Vol 4 (1) ◽  
pp. 13-20
Author(s):  
Titistyas Gusti Aji ◽  
Slamet Susanto ◽  
Dewi Sukma ◽  
Sintho Wahyuning Ardie

The aims of this study were to evaluate the physical and chemical change of pummelo fruit during storage with waxing and wrapping, and to determine the effect of waxing and wrapping and their  its interaction in affecting shelf life of pummelo fruits. This research was arranged in a randomized complete block design with two factors and three replications. The first factor was waxing consisted of without waxing, 10% beeswax, 5% beeswax, and chitosan. The second factor was wrapping consisted of without wrapping and wrapping using either transparent yellow or white plastic wrap. Pummelo fruits experience weight loss, reduced total soluble solid (TSS), decrease in firmness and total acidity during 48 days of storage in room temperature. Waxing using beeswax or wrapping using plastic wraps significantly suppressed weight loss and maintained fruit firmness compared to those without waxing and wrapping. However, waxing and wrapping did not significantly affect the quality of pummelo fruits. Based on the fruit’s weight loss, firmness, and panelist preferences, 5% or 10% bees wax can be used as waxing. Both transparent yellow and white plastic wraps can be used to maintain fruit weight, firmness, and appearances during storage. 


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